Staying hydrated is vital for proper cell and organ function, body temperature stability, and mental clarity. In survival situations, the effects of even mild dehydration could result in confusion and lethargy – in other words, things that could derail your efforts well prior to organs shutting down. However, ensure your water is purified to the best of your ability, keeping bacteria and viruses out of your system. Create an arsenal of tools to enable you to purify water no matter where you are. Getting a water-borne pathogen in your system will not only derail your trip, but could create further complications that could become very serious over time.